Difference between revisions of "Base materials with high potential"
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* [[moissanite]] - SiC - high heat resistance | * [[moissanite]] - SiC - high heat resistance | ||
| − | * [[stishovite]] and [[ | + | * [[stishovite]] and [[seifertite]] - metastable ultrahard and dense SiO<sub>2</sub> polymorphs |
== Simple rutile structure & hard == | == Simple rutile structure & hard == | ||
Revision as of 22:28, 12 April 2021
Best of the best
- diamond and its polymorphs including hexagonal diamond aka lonsdaleite
- moissanite - SiC - high heat resistance
- stishovite and seifertite - metastable ultrahard and dense SiO2 polymorphs
Simple rutile structure & hard
- rutile
- stishovite - metastable SiO2 polymorph - rutile structure & very hard and dense
- Neo-polymorphs of the above
Simple salt structures
- Periclase
- Some transition metal monoxides
Con: low crystal structure symmetry
- leukosapphire - very hard
- quartz
Con: Rather soft materials
- Calcite and aragonite
